EP 3516159 B1 20231122 - HIGH EXPANSION METAL BACK-UP RING FOR PACKERS AND BRIDGE PLUGS
Title (en)
HIGH EXPANSION METAL BACK-UP RING FOR PACKERS AND BRIDGE PLUGS
Title (de)
STÜTZRING MIT HOHER AUSDEHNUNG FÜR PACKER UND BRÜCKENSTOPFEN
Title (fr)
BAGUE DE SECOURS MÉTALLIQUE À HAUTE CAPACITÉ D'EXPANSION POUR GARNITURES D'ÉTANCHÉITÉ ET OBTURATEURS DE TUBAGE
Publication
Application
Priority
US 2016052645 W 20160920
Abstract (en)
[origin: WO2018056951A1] A method of retaining a packing element including utilizing a back-up ring assembly in contact with at least one packing element, the assembly comprising: at least one wedge shaped spiral ring comprising: at least one outer circumferential face configured to contact a wellbore casing or liner; at least one conical, inner circumferential face configured to contact a portion of a retainer with a conical face; and an axial end face configured to contact the at least one packing element. A back-up ring assembly including at least one wedge shaped spiral ring comprising: at least one outer circumferential face configured to contact a wellbore casing or liner; at least one conical, inner circumferential face configured to contact a portion of a retainer with a conical face; and an axial end face configured to contact a packing element.
IPC 8 full level
E21B 33/12 (2006.01); E21B 17/00 (2006.01); E21B 33/128 (2006.01)
CPC (source: EP RU US)
E21B 33/12 (2013.01 - RU); E21B 33/1216 (2013.01 - EP US); E21B 33/128 (2013.01 - EP US); B33Y 80/00 (2014.12 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2018056951 A1 20180329; AU 2016424204 A1 20190124; AU 2016424204 B2 20211209; BR 112019002502 A2 20190514; CA 3032084 A1 20180329; CA 3032084 C 20211123; CN 109563733 A 20190402; CN 109563733 B 20221021; DK 3516159 T3 20240122; EP 3516159 A1 20190731; EP 3516159 A4 20200429; EP 3516159 B1 20231122; MY 192458 A 20220822; RU 2729874 C1 20200813; US 2019203558 A1 20190704
DOCDB simple family (application)
US 2016052645 W 20160920; AU 2016424204 A 20160920; BR 112019002502 A 20160920; CA 3032084 A 20160920; CN 201680088298 A 20160920; DK 16916923 T 20160920; EP 16916923 A 20160920; MY PI2019000253 A 20160920; RU 2019103575 A 20160920; US 201615556708 A 20160920